op 	 {
  name: "ReduceJoin"
  input_arg {
    name: "inputs"
    type: DT_STRING
  }
  input_arg {
    name: "reduction_indices"
    type: DT_INT32
  }
  output_arg {
    name: "output"
    type: DT_STRING
  }
  attr {
    name: "keep_dims"
    type: "bool"
    default_value {
      b: false
    }
  }
  attr {
    name: "separator"
    type: "string"
    default_value {
      s: ""
    }
  }
}
